Beta Blocker in Case of Heart Failure

Topics: Beta blocker, Hypertension, Myocardial infarction Pages: 4 (813 words) Published: March 1, 2013
Beta Blockers
In Case of Heart Failure

Noor M. Al-Tarouti

Beta Blockers in Case of Heart Failure

Introduction :
Beta-blockers, also known as beta antagonists, beta-adrenergic blocking agents, or beta-adrenergic antagonists, are drugs that are prescribed to treat several different types of conditions, including hypertension (high blood pressure), angina, some abnormal heart rhythms, heart attack (myocardial infarction), anxiety, migraine, glaucoma, and overactive thyroid symptoms.

Beta-blockers block the action of the sympathetic nervous system of the heart, thus reducing stress on the heart. The sympathetic nervous system activates the "fight or flight" response. It is part of the autonomic nervous system.

Beta-blockers block beta-adrenergic substances, such as apinephrine (adrenaline) in the autonomic nervous system (involuntary nervous system). They slow down the heart beat, decrease the force of the contractions of the heart muscles, and reduce blood vessel contraction in the heart, brain, as well as the rest of the body.

Generic Names:| Carvedilol / Metoprolol / Atenolol / Bisprolol / Propranolol / Timolol| Brand Names:| Coreg / Lopressor, Toprol XL / Tenormin / Zebeta / Inderal / Blocadren| How it is given:| Oral (tablet or capsule), intravenous (IV)|

Indications :
Doctors may prescribe beta-blockers for patients with tachycardias (rapid heart rates). They help patients with angina by lowering the amount of oxygen the heart muscles require. Angina pectoris occurs when the heart requires more oxygen than it is getting.

Beta-blockers can help hypertensive patients because their effects on blood vessels lower blood pressure.

Patients with hereditary tremors as well as those who suffer from migraines may benefit from taking beta-blockers.

In other words, beta-blockers are known as beta- adrenoreceptor blocking agents and are used to treat: Commonly
* Angina
* Heart failure
* High blood pressure (hypertension)...

References: :
Myo clinic
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